ack_handle_ 43 sync/internal_api/public/base/invalidation.cc std::string(), dropped.ack_handle_); ack_handle_ 111 sync/internal_api/public/base/invalidation.cc return ack_handle_; ack_handle_ 127 sync/internal_api/public/base/invalidation.cc ack_handle_); ack_handle_ 133 sync/internal_api/public/base/invalidation.cc tracker->RecordDropEvent(ack_handler_, ack_handle_); ack_handle_ 138 sync/internal_api/public/base/invalidation.cc ack_handle_); ack_handle_ 119 sync/internal_api/public/base/invalidation.h AckHandle ack_handle_;